1. Charleston Earthquake: On June 27, 1886, a devastating earthquake hit Charleston, South Carolina. The earthquake, which had a magnitude of 7.3, destroyed buildings and homes, and caused significant damage to the city's infrastructure.

2. Revolutionary War Battle: One of the major battles of the Revolutionary War, the Battle of Fort Sullivan, was fought in Charleston on June 27, 1776. The Patriots, who were outnumbered and outgunned, managed to repel the British fleet, which attempted to capture the fort.

3. Prohibition Begins: On June 27, 1915, South Carolina became the first state to enact a statewide prohibition law, banning the sale and manufacture of alcohol. This law remained in effect until the repeal of prohibition in 1933.

4. First Public Library: The first public library in South Carolina, the Charleston Library Society, was established on June 27, 1748. The library, which was founded by a group of colonists, contained over 500 books and was one of the largest collections in the American colonies.

5. Civil Rights Legacy: On June 27, 1964, the Civil Rights Act was signed into law by President Lyndon B. Johnson. The act, which aimed to end discrimination based on race, color, religion, and national origin, had a significant impact on the civil rights movement, including in South Carolina.